@bg: rgb(40, 14, 189);

body {
  min-width: 100vw;
  min-height: 100vh;
  #app {
    font-size: 50px;
    background: url(~@images/bg.jpg) no-repeat 0 0;
    background-size: cover;
    .line {
      display: block;
    }
    img {
      display: flex;
      width: 500px;
      height: 500px;
    }
  }
  .item:nth-of-type(odd) {
    background: @bg;
  }
  .unuse-css {
    font-size: 100px;
  }
}
